[u/mrichter/AliRoot.git] / STEER / ESD / AliESDTrdTracklet.h

#ifndef ALIESDTRDTRACKLET_H
#define ALIESDTRDTRACKLET_H

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

// ESD format for TRD tracklet from FEE used for triggering

#include "TObject.h"

class AliESDTrdTracklet : public TObject
{
 public:
  AliESDTrdTracklet();
  AliESDTrdTracklet(UInt_t trackletWord, Short_t hcid, Int_t label = -1);
  AliESDTrdTracklet(const AliESDTrdTracklet &trkl);
  AliESDTrdTracklet& operator=(const AliESDTrdTracklet &trkl);
  ~AliESDTrdTracklet();

  void SetTrackletWord(UInt_t trklWord) { fTrackletWord = trklWord; }
  void SetHCId(Short_t hcid) { fHCId = hcid; }

  // ----- tracklet information -----
  UInt_t GetTrackletWord() const { return fTrackletWord; }
  Int_t  GetBinY()  const;
  Int_t  GetBinDy() const;
  Int_t  GetBinZ()  const { return ((fTrackletWord >> 20) & 0xf);  }
  Int_t  GetPID()   const { return ((fTrackletWord >> 24) & 0xff); }

  // ----- position information (chamber-local) -----
  Float_t GetLocalX() const { return fgkX0; }
  Float_t GetLocalY() const { return GetBinY() * fgkBinWidthY; }
  Float_t GetDyDx() const;

  // ----- geometrical information -----
  Int_t GetHCId() const { return fHCId; }
  Int_t GetDetector() const { return fHCId / 2; }
  Int_t GetROB() const { return -1; }
  Int_t GetMCM() const { return -1; }

  // ----- MC information -----
  Int_t GetLabel() const { return fLabel; }

 protected:
  Short_t fHCId;		// half-chamber ID

  UInt_t fTrackletWord;		// tracklet word (as from FEE)
				// pppp : pppp : zzzz : dddd : dddy : yyyy : yyyy : yyyy
  Int_t  fLabel;		// MC label

  static const Float_t fgkBinWidthY;   // bin width y-position
  static const Float_t fgkBinWidthDy;  // bin width deflection length

  static const Float_t fgkX0;          // reference position in x-direction
  static const Float_t fgkDriftLength; // drift length to which the deflection length is scaled

  ClassDef(AliESDTrdTracklet, 1);
};

#endif
Commit	Line	Data
52cd0cc0	1	#ifndef ALIESDTRDTRACKLET_H
	2	#define ALIESDTRDTRACKLET_H
	3
	4	/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	5	* See cxx source for full Copyright notice */
	6
	7	// ESD format for TRD tracklet from FEE used for triggering
	8
	9	#include "TObject.h"
	10
	11	class AliESDTrdTracklet : public TObject
	12	{
	13	public:
	14	AliESDTrdTracklet();
	15	AliESDTrdTracklet(UInt_t trackletWord, Short_t hcid, Int_t label = -1);
	16	AliESDTrdTracklet(const AliESDTrdTracklet &trkl);
	17	AliESDTrdTracklet& operator=(const AliESDTrdTracklet &trkl);
	18	~AliESDTrdTracklet();
	19
	20	void SetTrackletWord(UInt_t trklWord) { fTrackletWord = trklWord; }
	21	void SetHCId(Short_t hcid) { fHCId = hcid; }
	22
	23	// ----- tracklet information -----
	24	UInt_t GetTrackletWord() const { return fTrackletWord; }
	25	Int_t GetBinY() const;
	26	Int_t GetBinDy() const;
	27	Int_t GetBinZ() const { return ((fTrackletWord >> 20) & 0xf); }
	28	Int_t GetPID() const { return ((fTrackletWord >> 24) & 0xff); }
	29
	30	// ----- position information (chamber-local) -----
	31	Float_t GetLocalX() const { return fgkX0; }
	32	Float_t GetLocalY() const { return GetBinY() * fgkBinWidthY; }
	33	Float_t GetDyDx() const;
	34
	35	// ----- geometrical information -----
	36	Int_t GetHCId() const { return fHCId; }
	37	Int_t GetDetector() const { return fHCId / 2; }
	38	Int_t GetROB() const { return -1; }
	39	Int_t GetMCM() const { return -1; }
	40
	41	// ----- MC information -----
	42	Int_t GetLabel() const { return fLabel; }
	43
	44	protected:
	45	Short_t fHCId; // half-chamber ID
	46
	47	UInt_t fTrackletWord; // tracklet word (as from FEE)
	48	// pppp : pppp : zzzz : dddd : dddy : yyyy : yyyy : yyyy
	49	Int_t fLabel; // MC label
	50
	51	static const Float_t fgkBinWidthY; // bin width y-position
	52	static const Float_t fgkBinWidthDy; // bin width deflection length
	53
	54	static const Float_t fgkX0; // reference position in x-direction
	55	static const Float_t fgkDriftLength; // drift length to which the deflection length is scaled
	56
	57	ClassDef(AliESDTrdTracklet, 1);
	58	};
	59
	60	#endif